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Unread 06-08-2007, 08:16 PM   #1
theviper90210
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247 to 242 transfer case swap

i will soon be doing the 247 to 242 swap in a 99 grand cherokee v8, 45rfe tranny, my question is what is the difference between the 4.0 grands with the 242 and the v8 grands with the 242? If i get a 242 from a 4.0 grand can i make it work in my v8 with parts from the 247? Let me know thanks guys
- also what is the and jeep models and year with the 242 that i can use in my setup?

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Unread 06-08-2007, 09:29 PM   #2
rm2001wj
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Here's something that will probably be useful. http://www.neow.org/NV242j.html
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Unread 06-08-2007, 10:39 PM   #3
theviper90210
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thanks i have read that just looking for any input on using a 4.0 242 and makeing it work with the v8 setup?
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1994 YJ Wrangler
4.5in Rubicon Express Suspension Lift
1in Body Lift
35in General Mud Terains
4.88 Front/Rear Gears
Detroit True Trac Locker - Front
Dana Limited Slip - Rear
Custom Rear Bumper/Swing Out Carrier
Ramsey 9000lb Winch
Spray in Bedliner
Borla Headers, Gibson Cat Back Exhaust
Jacob's Electronic Iginition Kit
2 KC DAYLIGHTERS on Windshield
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Unread 06-09-2007, 07:32 AM   #4
rm2001wj
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It seems that Brown thinks that there is probably a difference between the 4.0 and 4.7 versions with the 4.7 being heavier duty.

I checked my 01 parts catalog to see what I could find. It turns out that there are different part numbers for the two versions of the complete TC assemblies. In addition, many of the internal parts have different numbers for the 4.0 and 4.7 versions. I have no personal experience with this, but I would go with the 4.7 version in my 4.7 and not take a chance on the 4.0 version.
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Unread 06-10-2007, 09:24 AM   #5
theviper90210
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can i make a 242 from a 96 grand cherokee work?
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1994 YJ Wrangler
4.5in Rubicon Express Suspension Lift
1in Body Lift
35in General Mud Terains
4.88 Front/Rear Gears
Detroit True Trac Locker - Front
Dana Limited Slip - Rear
Custom Rear Bumper/Swing Out Carrier
Ramsey 9000lb Winch
Spray in Bedliner
Borla Headers, Gibson Cat Back Exhaust
Jacob's Electronic Iginition Kit
2 KC DAYLIGHTERS on Windshield
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Unread 06-10-2007, 09:54 AM   #6
BlaineWasHere
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Quote:
Originally Posted by theviper90210
can i make a 242 from a 96 grand cherokee work?
NO! You need a 242 from a V8 WJ ONLY! Quit trying to see what works and just serch for the part that does.


serch car-part.com... they are out there.

BTW: You will also need the rear drivesaft from the donor Jeep.
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Unread 06-10-2007, 09:54 AM   #7
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also... may I ask why you are doing the swap?
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Unread 06-10-2007, 01:16 PM   #8
theviper90210
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i understand that, the reason is becasue of the problems im having with the 249 listed in these threads
- http://jeepforum.com/forum/showthread.php?t=411003
- http://www.jeepsunlimited.com/forums...d.php?t=819424
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1994 YJ Wrangler
4.5in Rubicon Express Suspension Lift
1in Body Lift
35in General Mud Terains
4.88 Front/Rear Gears
Detroit True Trac Locker - Front
Dana Limited Slip - Rear
Custom Rear Bumper/Swing Out Carrier
Ramsey 9000lb Winch
Spray in Bedliner
Borla Headers, Gibson Cat Back Exhaust
Jacob's Electronic Iginition Kit
2 KC DAYLIGHTERS on Windshield
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Unread 06-11-2007, 01:16 PM   #9
theviper90210
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ok guys im getting a 242 from a 2000 grand cherokee with the 4.7 v8, and the rear driveshaft to match that setup. what else do i need other than the plastic shifter bezel (where can i get one)?
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1994 YJ Wrangler
4.5in Rubicon Express Suspension Lift
1in Body Lift
35in General Mud Terains
4.88 Front/Rear Gears
Detroit True Trac Locker - Front
Dana Limited Slip - Rear
Custom Rear Bumper/Swing Out Carrier
Ramsey 9000lb Winch
Spray in Bedliner
Borla Headers, Gibson Cat Back Exhaust
Jacob's Electronic Iginition Kit
2 KC DAYLIGHTERS on Windshield
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Unread 06-11-2007, 01:41 PM   #10
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Quote:
Originally Posted by theviper90210
ok guys im getting a 242 from a 2000 grand cherokee with the 4.7 v8, and the rear driveshaft to match that setup. what else do i need other than the plastic shifter bezel (where can i get one)?
You should not need anything else. You can get the bezzel from the dealer or a salvage yard.
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Unread 06-11-2007, 04:02 PM   #11
theviper90210
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thanks blaine, what is the length difference in the 242 rear DS and the 247 rear DS, why do i need the 242 is what im asking whats the difference? THAnks
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1994 YJ Wrangler
4.5in Rubicon Express Suspension Lift
1in Body Lift
35in General Mud Terains
4.88 Front/Rear Gears
Detroit True Trac Locker - Front
Dana Limited Slip - Rear
Custom Rear Bumper/Swing Out Carrier
Ramsey 9000lb Winch
Spray in Bedliner
Borla Headers, Gibson Cat Back Exhaust
Jacob's Electronic Iginition Kit
2 KC DAYLIGHTERS on Windshield
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Unread 06-11-2007, 04:05 PM   #12
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I think the tail shaft part of the 247 is longer... or the other way around. I don't remeber which...
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Unread 06-11-2007, 05:49 PM   #13
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This quote from Brown's write up explains I think.
Quote:
Some notable exceptions: since my particular 242j transfer has a bigger output shaft with more splines, I had to use the donor WJs rear drive shaft also. My new NV242 is 2 longer than the old NV 247.
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Unread 06-11-2007, 06:07 PM   #14
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^^^ thanks...
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Unread 06-11-2007, 07:25 PM   #15
MuddyLuxury
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I just did this last weekend...aside from being a pain, it was worth it. You will need the the shifter assembly..its a cool 225 from the stealership. All the link cables are the same. the 242j has a 32 spline tail yoke, the 247 is 27. Your best bet to keep your sanity in this process is to unbolt the crossmember after you have a trans jack in place under the trans. and then un bolt the motor mount so the cross memeber will fall. Now here is the *****, the other side of that motor mount, that bolts up to the bottom of the trans, you have to remove it to get on the bottom two bolts. That mount is held by 15mm bolts, i sugest to you a 6 point socket in 1/2 drive or bigger with a breaker bar, and a mild extender... to keep from busting your knuckles
ahh other than that i had a few bolts left over from the shifter assembly switch over, and the center console has some hidden bolts in some wierd locations.


oh yea... DONT TOUCH THE LITTLE SILVER BOX towards the back...thats the AIRBAG module! bad stuff happens
good luck and if you take pictures along the way, I'll do the write up, I just forgot to take pictures while i was doing it
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